Fuel-vaporizer.



C, H. COOK.

v FUEL VAPORlZER. APPLICATION mm mm. 7 19m.

Patented Am. 20, M8.

2 SHEETS-SHEET con/0t h. Coat C. H. COOK.

FUEL VAPORIZER.

mvmcnwu FILED m4. 7. 191a.

1,27 6,332. Patented Aug; 20, 1918.

2 SHEETS-SHEET Zlnuuatom 85 7 of heat, and then this heated vaporized fuel,

in an undiluted state, is conveyed to a suit-.. ableair mixer which supplies the requisitc .air for the mixture and the latter is then UNITED STATES angular OFFICE.

CLAUDE HARRISON COOK, OF'YOUNGSTOWN, OHIO, .ASS IGNOR OF ONE-FOURTH TO B. L. JACKSON AND ONE-FOURTH TO 8'. W. FAWCETTI FUEL-VAPOBIZEB.

Application filed January 7; 1918. Serial lie. 216,710.

State of Ohio, haveinvented certain new and usefulImprovements in Fuel-Vapors lens, of which the following is a specification.

.10 therefor;

' especially in conn This invention relates to internal combusftion engines, and. more particularly to an in charge forming devices I i tion, and arrangement of'parts here nafter improvement -To thisend the invention contemplates a novel apparatus for va orizing a heavy fuel tively crude-and inuolatilecharacter of kerosene, its more genera use has been rohibited, 1011 with car ureters of i .--the type. usuallyrniployed on automobiles with asolene as the' fuel foil. In the latter case, it is w'ell'known that the gasolene becomes. vaporized into an explosive gas by mixing with air taken in through the carbureter, thus 'causing the vaporization and mixing-with air to be a substantially simultaneous operation. However, on account ofthe relatively involatile character of kerosene as above pointed out, it is not feasible to insure practlcal results, to cause vaporization of the kerosene simultaneously with its contact with the air. p

Accordingly, the present invention has primarily in view a de ice by which kerosene or equivalent heavy fuel oil is first vaporized in the absence of air by the action taken into the intake manifold of the-en- 'gin e. To carry forward this object it is proposed, for the sake of convcinence and econoniygto utilize the heat of the exhaust of-the engine as the agent for initially vaporizing the kerosene; and to this end a special vaporizer unitis provided which is particuarly designed to present an extended area of heating surface to the liquid fuel without assuming unwieldy proportions. and which may be readily fitted in the exhaust pipe line; and" conveniently connected with the source'of fuel supply and air mixer associated with the intake manifold.

fuiiher object of the invention is to provide a'siiec'i'al formof air mixer for use Specification of Letrl Patent.

Patented Aug. 20, 1918.

take manifold of the engine to provide the 'prpper combustible charge.

1th the above and otherobjects in view which will'more readily appear as the na' ture offlthe invention is understood, the same consists in the novel construction, \combina more fully described, illustrated and claimed. A preferred practical embodiment of the invention is shown in the' accompanying drawings in which Figure 1. is a more or less diagra to an internal combustion-engine.

Fig. 2 is a, side elevation of the vaporizer unit partly in section the point of section be-- ing indicated by the line 22 of Fig. 4.

Fig. 3 is a vertical cross section taken on the line 3-3 of Fig.

Fig. 4 is an elevation Dione end of the vaporizer showing the fuel intake and vapor outlet openings.

Fig. 5 is an end elevation of the end opposite that shown in Fig. 4. i

Fig. 6 is a vertical cross section on the line 6-6 of Fig. 2 looking in the direction of the arrows, and moreclearly illustrating (by atic view showing the present apparatus applied dotted-lines) the path of the vapor through the vaporizer unit.

Fig. 7 is .a.vertical sectional view of the air and vapor mixer.

Fig. 8 is a horizontal cross section taken on the line 88 of Fig. 7.

Similar reference characters designate corresponding parts throughout the several figures of the drawings.

In carrying the present invention into effect it is proposed to provide a charge forming device which primarily includes a vaporizcr-unit for the kerosene, wherein the latter is convertedfrom a liquid to a vapor in'the total absence of air, and is thence drawn into the special air mixer, arranged in relativel close proximity to the intake manifold o the engine, whereby the heated kerosene gaswill be thoroughly mixed with the-air and drawn into the engine to provide the necessary fuelcharge for,operating the same.

Referring now more. s ecifically to the vaporizer unit designate generally as 1,.

it will he observed from Fig. 1 that tho san'io. is interposed in tho oxhaust pipo lino, L of the ongino E at. any suitalilo and muvonio-nt point. and, in ordor to tacilit-ato this installation the said vaporizor unit. which is prot'o alily of oylimlrioal shapo. is providod at oa'oi oud with an intorual tlll'l.tltl(tl nipplo oxtonsion 2. that \\'l|(Il tlH.- prosont. vaporizor dovioo is in plaoo it. l)oooinos .'in otl'oot. a part of tho oxhaust pipo lino itsoll. whorohy it roooivos tho full l)(ll(lll ot all the hoat ot tho wasto gasos from tho engino. aml as will also ho ohsorvod from Fig. I. tho front ond of tho vaporizor has oounootod thorowith a snitalilo. t'uol supply pipo lino l-loading from a horosono or coal oil supply. tank -l whioh may ho oonvoniontlv looatod umlor tho 'soat of tho aut'oiuohilo or olsowlioro to ohtaiu tho propor gravit} food of tho tool to tho \aporixor.

and this same oml of tho vaporizor also has tittod thoroto a hoatod korosono-vapor oon- Y duit: 5 whioh loads to tho air |ni \'ol' mmnootod with tho intako lnanil'ohl M'ot tho. ongino.

-llaving now sot forth tho gonoral foaturo of tho prosont ohargo forming systoni. nioro partioular roforonoo will lio luado to tho novol'vaporizor unit it. This unit is. as proviously sot forth. prot'oralily ot' o 'limlriat shapo aml may ho lnado li a ousting oporation .or otilior oonvoniont motliod. .\s

shown. the said unitis partionlarlv oonstrm-tod with a viow to providing a. maximum hoatin'g sin-lava ovor whioh tho liquid 't'uol must pass in ordor to soouro tho propor va mrization. and to this ond it is plopusod f 'tio ftll'ttl tho ovhndor with an lntorior orossshapod oxhanst pass-ago t3 whioh o.\'tomls throughout tho ontiro longth lhorool' shown in tho drawings aml dividos tho intorior of tho cylindor into a plurality ol sot-tor shapod ooinpartnionts or o'hainliors T. 8, 9 and It] whirh aro in oonunnnioation with oa h othor. whorolw tho t'uol must tmvol or pass ovor tho groalost possihlo aroa of hoating surl'aoo. 'lhat is to sa tho initial li1 nid l'uol roooiving ohalnhor Twhioh. roooiros tho outlot ond of tho l'nol supply pipotl. has at its opposito oml a snitahlo port. 7" whioh ostahlishos ooin-uinnioation hot \voon tho ohalnliors T aml H. amt oaoh of tho othor ohamllor or oonipartnionts a ro similarly providod as will prosontl) apponrl As shown in 'l"ig. ll. tho said port- 7' is foruiod transvorsolv of ono of tho wings-pit tho oxhanst. passago 6. so that; as tho not passos from tho ohamhor 7 into (lltlllllNI H it inust pass through a rolativoly rostriotod orilioo whioh is dirootly in tho lino of tho oXltnHst gasos. aml is of oourso highly hoatod. thus prodm'ing a.|naxinnun vaporizing oll'oot. on

' tho. t'uol passing hotwoon ohalnhors 7 and R.

\lhon tho [not is roooivod by ohanihor Q. from tho chamber 7, a. small proportion Thus, it will l)- apparout taoo. ot tho (:hanihor aml also the taot. that in ordor for tho gas to osoapc thorofroui it must trarol to tho, opposito ond from which it ontorod. l'ho sanio will bo in a more highly vaporizod state whon it passos into tho ohainhor 9 through tho passago way 8 in tho nppor wall ol tho ohainhor H as shown in Fig. :1. and looatod at tho front ond of tho vaporizor wheroas the port 7 is looatod at the roar oud. .\ftor ontoring the front oml of tho ohamhor J through tho. port 8. tho vaporizod ko'rosono niust.travol tho,tull longth of tho ohanihor t in ordor to roaoh t'ho, outlot port 9 at tho. roar ond thoroof whioh oounnunioatos with tho ohauibor 10. Thus tho vapor hooomos su wrhoatod in chan'ihor band also in ohanihor 10 as it passos from tho roar ond ot tho lattor toward the trout omt thoroot' whirh is providod with suitahlo outlotnipplo 1t connorting with tliovapor oondnit 5 loading to the air mixer A.

From thotorogoing it. will ho apparent. thattho liquid lcorosono from tho fuel tank lwill holodby tho pipo 3 into tho front ond of tho. ohanihor 7: whoro-it hooomoshoat- 0d and partially vaporizod and thou tho liquid and vapor will ltttlhc their way in' tho niannor ahovotlosorihod into the ohaiubor 8; whoro all ot tho liquid booonios vaporizod and thou tho vapor only passos on through ohanihors 9 aml 10. whilohoing oxposod to a high dogroo ot' hoat. in tho total ahsouoo of air. 'lhus. tho vapor disohargl-al from tho ohanihor It) through tho outlot it) into tho pipo. 5 is puro nmlilntod lcorosono vapor in a highly hoatod stato. aml this vapor is (onvoyod in this condition to a point in rotativoly oloso proximit} to tho onginopvhoro it is Illl.\t'tl with suitahlo proportions of air to form tho oxplos-ivo ohargo for tho g: ongino. lhat is to say. this highly hoatod liorosono vapoi is oouvoyod through tho pipo 5 dirortlv to tho inlot oonnortion ll of tho :iir ltliXtt' whioh is protorahl of tho spooial oonstruotiou shown in Fig; 7 ot tho drawings.

.\s will. ho ohsorvod. from the said tignlo this air mixor oinliodios in its organizati n a suitalilo oonioal oasing 1'. having a oonst'riotod ontlot lit and providod with a lat , their arrangement in a 80 the air drawn theret spider 22' formed in the central intake pase 28. To facilitate the lifting of the tion of theengine, it is also pro used to provide a plurality. of relativey small nular chamber 18.

Since the heated kerosene vapor is conveyed directly from the pipe 5 to theiinlet connection 11 of the air mixer and thence into the annular chamber 18, it will be apparent that until th valve 19 is lifted, no air is mixed with the vapor. However, as soon as the valve 19 is caused to lift, air will be drawn in through the pa sage 23 and over the vapor distributed 1n the chamber 18, and thence around the edges of the valve 19. again t the inclined side of the'casing 12, and, at the same time air will be drawn in through the inclined openings 24 in such a manner that jets of air will penetrate the volume of air and'gas passing up into the Venturi casing to thoroughly, agitate the same and cause the proper mixing of gas and air. That is to say, owing to the oblique disposition of theopenings 24 and circular formation around the upper ed at rough by the oper tion ofthe engine will be injected into the olume ofqgas and air assing beneath the under surface of the vave head 19 in such and foyin a cone of oughly mix the "parent" that the a manner that the various jets wjll converge and air before being into the intake manifold of the engmet' .1

an view of the foregoing, it will be li present invention pro oses taken n V to providea charge forming device w ich',

V mg of the enginebecause of the fact that itdependsupon the heat of the exhaust gases, to re ori-ze the kerosene, is only operative afterit e engine is running. owever, the initial startmay be conveniently accomplished by either placing a priming charge of gasolene in thelcylindersj orsupplying the vaporizer unit itself with an initial supply of volatile fu el oil which ,wlil, vaporize under and 1 form the proper in After the engine is lnitially of the exhaust will-cause tial fuel charge. started the heat ve 19 under suctioncaused bythe opera of the chamber 18,-

air which will th-orand dividing longitudinal vaporlzin' the suctipn of the engine a thorough vapor- 'ization of the kerosene in the total absence intake mini- 1-. A fuel vaporizer for internal combus edto be interposed in the 't mm the engine,

tion engines ad?) line of exhaust V said vagarzer being of tubular cross section and. av-

readily maintained, and a mg an interior cross-shaped exhaust passage formed longitud nally therein and also a plurality of separate compartments each in communication with "the other, means for supplying liquid fuel to one of said compartments and means for conveying'vaporized fuel therefrom. 1

2. A fuel vaporizer for internal combustion engines adapted to be interposed in'the line of exhaust from theen gine andinclud inga tubular bodyportion having-a-threadat eacli end. for fitting to the exhaust pipe, and also having'aniin terior cross' shaped exhaust passage extend-a ing lon itudinnlly therethrough' and form ed .nipple extension e full length of means for supva owner, and

fuel there-' 3. A fuel vaporizer'for internalcombuswti0n engines oonsistingof mg formed with means at phn with the-exhaustf-pipe-fof the engine, and having an integral interior eross shaped wall portion forming a passage-way for the heated exhaust gases through the vaporizer the interiorfof the chambers. In testimony wheroo I hereunto aflix my i CLAUDE -HARRISON COOK Witnesses: -Q N Penman Fnnms,

Jon A. Fumes.

at the opposite signature in the presence of two witnesses.

. a s mg wit in the tubular body a plurality of sector-shaped compartments, ports-disposed ed in such mana vaporizing cast; I each end for coulatter into its 

